khat

As a noun chat

is a chat, exchange of text or voice messages in real time, notably by internet.

As an adjective khat is

thirsty (needing to drink).

As a noun that

is .

As an adjective khat is

thirsty (needing to drink).

As a pronoun what

is (interrogative) which thing, event, circumstance, etc: used interrogatively in asking for the specification of an identity, quantity, quality, etc.

As an adverb what

is in some manner or degree; in part; partly; usually followed by with .

As an interjection what

is .

As a determiner what

is which; which kind of.

As a noun what

is (obsolete) something; thing; stuff.

As an adjective khat is

thirsty (needing to drink).

As an adjective khat

is thirsty (needing to drink).

As a noun cathinone is

(organic compound) the aromatic amine 2-amino-1-phenyl-1-propanone that is the active ingredient of khat.